<!--
 * @Description: 
 * @Author: CoolSnow (coolsnow2020@gmail.com)
 * @Date: 2020-09-11 10:44:53
 * @LastEditors: CoolSnow
 * @LastEditTime: 2020-09-11 11:57:35
-->
<!DOCTYPE html>
<html>

<head>
    <title>html test</title>
    <script>
        function flutterChannel() {
            FlutterChannel.postMessage('hello');
        }
    </script>
</head>

<body>
    <a href="javascript:void(0);" onclick="flutterChannel">Flutter Channel</a>
</body>

</html>